Coke retort-oven.



` v. D. P. PIBSCHI.

G OKE RETORT OVEN. APPLIUA-TION FILED LDEO. 17, 19.07.

Patented July A19. 1910.

4 BHERTB--BHEET 1.

V.`1D 1.y PIBSGHI. COKE. RETOBT OVEN.

APPLICATION FILED DBO. 17, 1907.

111611161 July 19, 1910.

4 sums-911x111' 2.

Wma/y yV. D. E'. FIESGHI.

COKE RETORT OVE-N.

APPLICATION FILED DEG. 17, 190'7.

4 EHBETS--SHBET 3.

V. D. F. FESGEI. COKE BETORT OVEN. urmoATIoN FILED 11110.17, 1907.

Patented July 19,1910.

4 SHEETS-'SHEET 4..

VICTOR DOMTNIQUE-FERNAND FIESCHI, OF DOUAI, FRANCE.

' COKE animar-OVEN.

To all wwm fit 1mi/y concern:

Be it known that T, VICTOR DOMINIQUE FERNAND FIEscHI, a citizen of theFrench Republic, and resident of Douai, France, have-invented certainnew and useful Improvements in and Re] ating to Coke Retort- 0vens, ofwhich the following is a specication.

This invention relates to a coke retort oven and has for its object toprovide an oven of this kind, working similarly with or withoutrecuperation of the byproducts and with or without heating of the air.

This invention further has for its object to rovide a coke retort ovenada ted to rea ize the following conditions: l. "o cause the gases todescend vertically and to divide the combustion into numerous fines,which arrangement has for a long time been recognized as veryadvantageous and which has for a long time been .currently employed inretort ovens working without recuperation. 2. To realize a standard typeof retort ovens adapted to work similarly in three dilferent manners:(a) with out recuperation of the by-products; (b) with recuperation ofthe latter; (c) vwith recuperation of the by-products and heating of theair by means of regenerators. 3. To realize with this retort oven ofstandard typeand in three different specified cases (f1/,b and c) anabsolutely snnilar working (mixture of air and gas at the same points,that is where the combustion begins, same circuit of flames and soforth.) 4. To obtain an easy control and adjusting of the oven, eachflue or channel being adapted to be examined upon its whole length. 5.To realize an absolutely uniform heating, the gasts owing to the specialarrangement of the ifuesbeing obliged to heat the wall of the oven onlyat the places where they are admitted, that is to -the gases admitted ata determined point only heat the vertical zone ofthe wall, whichcorresponds to the vertical channel through which the as arrives.

T e annexed drawings show an embodi- `nient of this invention and inthese drawings.

Figure'l is a longitudinal section on lines AwA. B-B and C--C of theFig. 2. Fig.

Speeiiication of Letters Patent. Patented July 19, 191). Applicationfiled December 17, 1907. SerialfNo. 406,919.

2 is a cross section partly on line D-D, partly on line E-E of Fig. l.Fig. 3 is a partial cross section drawn at a larger scale on line D-D ofFig. l. Fig. 4 is a horizontal section drawn at an enlarged scale partlyon line F-F of Figs. l and 3 partly on line G-Gr of the same figures.Fig. 5 is a horizontal section partly on lines FF and H-H of Fig. 1 andpartly on lines G-G and I-I-of the same ligure. Fig. 6 is adiagrammatical sectional view, on a small scale, taken on the line L-LofFig. 2. Fig. 7 is a plan View of the metallic controlling device, and;Fig. 8 is a central sectional view on the line 8-8 of Fig. 7

In this device each vertical wall orcolumn is composed of thirty twovertical channels or fines forming sixteen groups of two channels g andIt communicating with each other at the top by means of the duct fw andconnected at the bottom by means of the chan-l nels y' and jl with theregenerator i placed directly under the oven. The said regenerators arealternatively put into communication by means of the passages o and 7cwith two large Hues Z arranged alongside the battery at the front andthe back thereof and communicating either with the chimney stack or withthe atmosphere. This may be realized in different ways, as for instanceby the arrangement diagrammatically shown in Fig. 6 of the drawings; inwhich the large channels or lines Z are each in communication by one endwith a. draft chimney S and at the other end with the atmosphere as atS1; the dampers u and u1 allowingthese communications to be opened orclosed as desired. The upper ends of each of the thirty-two Verticalchannels are rovided with conical nozzles, the ducts (L which form gasburners being closed at said upper ends by means of lugs al, so that theinterior of the ducts or c iannels may be examined when desired; Thesaid burners are adapted to communicate l. By means of the pipes m and awith the ducts 7' as lshown in Fig. 2 intended to receive the returngases freed from the byproducts; this sprin being arranged in such amanner that the liurners havin an odd number have a feed which is absoutely inplugs b have also been erator i,

dependent from that of the even numbered burners. As is also noted, thepipe n is pro- 2. With the interior of the oven by means v of theopenings e2 for the two extreme burners and the openings e and c1 forthe others; the latter openings alternately end in the right hand ovenand in the left hand one. y This communication which is directlyeffected for the extreme burners, is made by the intermediary of thesmall ducts f and f1 for the others; a plug Z allows of thiscommunication being established or done away with; a second plug Z1closes the communication with the outside.

Each series of two channels may besides this communicate directl withthe atmosphere by'means of the p ug b; the plug b1 may then be replacedby a metallic closing device, ada ted to control the introduction of theburning agent and as shown in Figs. 7 and 8 is constructed of twocircular nietallic disks o, suitably secured for independent rotation bymeans of a headed bolt p and each provided with sector apertures g, sothat by causing these disks to rotate upon each other, the amount of airadmitted, can be increased pr decreased, as desired.

Working of the Oven.

Workingwz'tkout recuperation-The plugs d having been removed and theholes e2 freed (which may be easily eected when the oven is open), thegas produced by the distillation goes from the oven into the burners a,as it has been stated hereabove; the sections of thelopenings have beencalculated so as to admit the gas in a proportion which is the greaterthe farther one is away rom the center of the battery in order to takeinto account the cooling due to the air surrounding the ends of theoven. As the removed, the air the arrival of which may be controlled bythe closing device which replaces b1, arrives at fw and is equalldistributed between g and L, the combustion therefore be ins to takeplace at the conical end of the urners and the combustion gases aspiredby the draft of the chimney go into the lower part where the combustionmust be more complete and from here through j and jl into the regenthechannel lo, the large flue Z and from here into the chimney stack. The

draft is controlled for each vertical channel by means of the registersk1. For each of the thirty-two channels the draft is con-V trolled` bythe construction of the oven itself by giving the sections of theconnecting- `ducts j and jl variabler values in relation with the amountof gas admittedat a and the distance which the gases must iiow in theregenerator in order to arrive atA the escape la. I'

Working with Arecuperation, 'of the by# produca-#The plugs Z and d1 arecarefully lutedas well as the plugs of the holes c2. The gases comingfrom the plant for the recuperationbf the by-products arrive in theburners through two ducts r placed alongside and on each side of thebattery. On these pipes are branched smaller pipes fm,

the burner a being supplied with gas throughthe 'medium of the pipes n,which are provided' with cocks nl intended to serve as a controllingmeans through the pipe in leading from the supply pipe r and the airnecessary for the combustion continues to. arrive as in the workingdescribed in the preceding paragraph; this being given, the way offthegases andthe heating are eected in exactly the same manner' as it hasbeen described above.

Working with recuperation -of the byproducts and heating of the air-Theplugs b, b1', Z and (Z1 are put in place and luted carefully. Thecombustible gases arrive as in the preceding method of working but owingto the presence of a set of cocks the burners a'of even order receivealone combustible gas during twenty minutes; the following twentyminutes the burners of an odd order receive the gas supply; at the sametime as this changing of working is effected one of the large channels Zwhich was in communication with the chimney is put into communicationwith the atmosphere, while the other channel Z is in communication withthe chimney. The device producing the said operations is controlled insuch. a manner that when one series of burners receives the gas thesixteen corresponding verticalchannels communicate through j, c', 7c, Zwith the chimney and the sixteen others with the atmosphere through theports V as communieating means. Consequently when the burnerscorresponding to the sixteen channels z, are feed with gas, the draft ofthe chimney will produce an air flow which entering-through Z will crossthe generator and be reheated there; it will then rise in the sixteenchannels g and support the combustion of the gas arriving from the topof the sixteen channels L, the products of combustion will go to thechimney passing through the regenerators which will be heated in orderto yield a part of their heat to the air which will pass through themduring the following ing with regenerators (which will for instancevbethe case when one needs steam instead of gas) it is evident, that it isabsolutely useless to construct regenerators; the latter have only, inthis case, the proportions of 'a simple channel or passage, which hasbeen realized by way of example on Fig. 1 of the annexed drawingswherein the pilings or part comprised between m1 and y, 'y1 has beensupposed removed and the height of the piers of the regenerators reducedthe entire amount comprised by said lines without anything being forthis reason changedV in the working and arrangement of the oven.

` It will be seen from the foregoing specification of the oven and thefour methods of working of same that the objects of this inventionstated in the present specification have been realized. As a matter offact the gases How in a vertical descending direction and the combustionhas been fractioned owing to the presence of numero-us channels.Furthermore the oven constructed according to the principles of thepresent invention is adapted to work indiiferently in three differentmanners (a) "without recuperation of the by-products (b) withrecuperation of same, (c) with recuperation of thc byproducts andheating of the air by means of regenerators. Besides this, the describedoven allows of an absolutely similar working being-obtained in thesethree cases c, b and c, the gas being admitted by the conical end of theduct a and the air being admitted at w that the combustion is alwaysproduced in the same manner.

As the pipes n are provided with cocks it is easy to perform 'thecontrol and the examination of the channels may be carried out in themost easy manner by withdrawing the plugs al, which realizes the fourthcondition stated in the beginning. As to the fifth condition stated, z'e. the uniformity of heating, it is realized by the division of thevertical partition walls into sixteen velements absolutely independentand comprising each two channels, each .of these sixteen elements 4beingprovided with a special admission of air and gas which will be ignitedand be completely burned inside this element; the gas ,which is conveyedthereto will consequently be used solely for heating the correspondingpart of the wall of -the oven.

Having now fully described my said invention, what I claim and desire tosecure by Letters Patent, isv 1. In a coke retort oven the combinationwith a series of juxtaposed retorts of vertical partition wallsseparating each pair of retorts, a plurality of vertical channels proivided in each of the said'partition walls, a burner at the top of eachchannel, separategas feeding ducts for all 'the burners,ducts forfeeding air from the outside to two neighboring` burners, mounted intothe said ducts and adaptedA to control the 'air lowtherethrough, meansfor closing the said ducts, ducts adjustablel means leading from twoneighboringburner' pipes communicating with the adjacent retort, meansfor closing` the said ducts and means for connecting the lower ends ofthe said vertical channels with the chimney, substantially as and forthe purpose set forth. j

2. In a coke retortoven the combination with a series ofjuxtaposedretorts, of vertical partition walls separating each pair ofretorts, a plurality of vertical channels provided in each ofthe saidpartition walls, a vertical burner pipe arranged above each of the saidvertical'channels, a plug at the upper end of the said burner pipe and anozzle at the lower end, separate gas feeding ducts for the burnerpipes, ducts for feeding air from the outside to two neighboringburners, adjustable air inlet devices in thc said ainfceding ducts,means for tightly closingI the said air inlet ducts, ducts leading fromtwo neighboring burner pipes communicating within the adjacent retort,means for tightly'closing the said ducts and means for connecting thelower ends of the i said vertical channels with substantially forth.

3. ln a coke retort oven the combination with a series of juxtaposedretorts, of vertical partition walls separating each pair of rctorts, aplurality of vertical channels provided in each of the said partitionwalls, a vertical burner pipe arranged above each of the said verticalchannels and ending at its upper end in the atmosphere, a plug` fortightly closing the said upper end, a nozzle at the lower end of saidburner pipe, separate 'gas feeding ducts for the burner pipes, means forclosing separately eachof the said gas feeding ducts, ducts adapted tofeed air from the outside to two neighboring burners, adjustable airinlet devices in the said air ducts, means for tightly closing the saidair ducts, ducts leading` from two neighboring burner pipescommunicating the chimney, as and for the purpose set with the adjacentretort,- means for tightly closing the said last named ducts, tworegenerators arranged in the lower vertical channels, ducts connectingone of the regenerators with those vertical channels of the partitionwall which are of odd order and the other rcgenerator with the verticalchannels of even order, a main duct arranged in front of the saidregenerators and connected phere, substantially as and for the purpose10 with those of them which are in relation with the said channels ofeven order, a main duct arranged aty the sides of the said regeneratoi'sand connected Wit-h those regenerators which are connected With the saidVertical channels of odd order and means for connecting the said mainchannels alternately with the chimney and the atmosset forth.

In testimony whereof I have hereunto set my hand in presence of twoWitnesses.

VICTOR DOMINIQUE FERNAND FIESCHI.

' Witnesses:

ADRIEN JOSEPH GIOT, ALBERT DPLAUOFE.

